<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>JS放置的位置1</title>
    <script>
        console.log("123123");
        alert("111");
    </script>
</head>
<body>
<input type="text" onblur="this.value='NUC'">



</body>
</html>